While faith is the act of the whole man, and intellect, affection, and will are involved in it, will is the all‐inclusive and most important of its elements. No other exercise of will is such a revelation of our being and so decisive of our destiny. The voluntary element in faith is illustrated in marriage. Here one party pledges the future in permanent self‐surrender, commits one’s self to another person in confidence that this future, with all its new revelations of character, will only justify the decision made. Yet this is rational; see Holland, in Lux Mundi, 46‐48. To put one’s hand into molten iron, even though one knows of the “spheroidal state” that gives impunity, requires an exertion of will; and not all workmen in metals are courageous enough to make the venture. The child who leaped into the dark cellar, in confidence that her father’s arms would be open to receive her, did not act irrationally, because she had heard her father’s command and trusted his promise. Though faith in Christ is a leap in the dark, and requires a mighty exercise of will, it is nevertheless the highest wisdom, because Christ’s word is pledged that “_him that cometh to me I will in no wise cast out_” (_John 6:37_). J. W. A. Stewart: “Faith is 1. a bond between persons, trust, confidence; 2. it makes ventures, takes much for granted; 3. its security is the character and power of him in whom we believe,—not our faith, but his fidelity, is the guarantee that our faith is rational.” Kant said that nothing in the world is good but the good will which freely obeys the law of the good. Pfleiderer defines faith as the free surrender of the heart to the gracious will of God. Kaftan, Dogmatik, 21, declares that the Christian religion is essentially faith, and that this faith manifests itself as 1. doctrine; 2. worship; 3. morality. (_b_) Reception and appropriation of Christ, as the source of pardon and spiritual life.